Cosco Shipping Line has signed a deal with MAN Energy Solutions to convert a series of boxships to methanol fuel.
The project involves two 13,800-teu ships and two 20,000-teu ships.
Their names were not disclosed but they are understood to be between seven and eight years old.
The contract was signed by Cosco Shipping Heavy Industry managing director Yan Hao and MAN Energy Solutions senior vice president Michael Petersen at the Marintec China exhibition in Shanghai.
